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http://dx.doi.org/10.7473/EC.2011.46.4.284

Preparation and Physical Properties of Diamond Grade Reflective Sheets Using Microprism  

Lee, Min-Ho (Department of Chemical and Biological Engineering and Engineering Research Institute, Gyeongsang National University)
Lim, Du-Hyun (Department of Chemical and Biological Engineering and Engineering Research Institute, Gyeongsang National University)
Heo, Min-Yeong (Department of Chemical and Biological Engineering and Engineering Research Institute, Gyeongsang National University)
Ahn, Jou-Hyeon (Department of Chemical and Biological Engineering and Engineering Research Institute, Gyeongsang National University)
Park, Jin-Woo (School of Materials Science and Engineering, Gyeongsang National University)
Yu, Ji-Hyun (School of Materials Science and Engineering, Gyeongsang National University)
Kim, Jong-Seon (School of Materials Science and Engineering, Gyeongsang National University)
Ryu, Ho-Suk (School of Materials Science and Engineering, Gyeongsang National University)
Ahn, Hyo-Jun (School of Materials Science and Engineering, Gyeongsang National University)
Kim, Ik-Hwan (Sam Woong Co., Ltd.)
Publication Information
Elastomers and Composites / v.46, no.4, 2011 , pp. 284-289 More about this Journal
Abstract
Prismatic reflective sheets were prepared using microprisms, and their retroreflection and structural properties were investigated and compared with encapsulated lens type reflective sheets based on glass beads. As prepared, the prismatic reflective sheets show well arranged array of microprisms. The arrangement of glass beads in encapsulated lens type reflective sheets is also found to be uniform without any cracks. However, during the coating process of the PET layer, the beads are coming out and the gaps are formed due to the application of high pressure. Even though the preparation method for reflective sheets based on microprisms is similar to that of reflective sheets based on glass beads, the method is relatively simple and cost effective, and also needs less time. Prismatic reflective sheets show higher coefficient of retroreflection from all entrance angles compared to reflective sheets based on glass beads. The results prove that the prismatic reflective sheets can be used for preparing the traffic sign boards to secure a clear view.
Keywords
microprism; prismatic reflective sheet; glass bead; retroreflection; traffic sign board;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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